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AIX Version 4.3 Kernel and Subsystems Technical Reference, Volume 1

mbreq Structure for mbuf Kernel Services

Purpose

Contains mbuf structure registration information for the m_reg and m_dereg kernel services.

Syntax

#include <sys/mbuf.h>
struct mbreq {
                  int low_mbuf;
                  int low_clust;
                  int initial_mbuf;
                  int initial_clust;
}

Parameters

low_mbuf Specifies the mbuf structure low-water mark.
low_clust Specifies the page-sized mbuf structure low-water mark.
initial_mbuf Specifies the initial allocation of mbuf structures.
initial_clust Specifies the initial allocation of page-sized mbuf structures.

Description

The mbreq structure specifies the mbuf structure usage expectations for a user of mbuf kernel services.

Implementation Specifics

The mbreq structure is part of Base Operating System (BOS) Runtime.

Related Information

The m_dereg kernel service, m_reg kernel service.

I/O Kernel Services in AIX Kernel Extensions and Device Support Programming Concepts.

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